套接扣压式薄壁钢导管(KBG)电线管路施工工法

本文介绍套接扣压式薄壁钢导管的施工技术,着重阐述了KBG管安装的特点、工艺原理,操作要点以及质量要求,对KBG管路的施工有借鉴意义。     

KBG钢导管施工质量现状及质量控制对策

本文分析我省KBG钢导管电线管路的施工质量现状,指出连接方式的错误是产生质量问题的关键所在,由其导致电线管路出现连接不牢固、接地不可靠等严重质量安全隐患,并从材料、施工过程两方面提出KBG钢导管电线管路施工质量控制的具体对策。     

套接扣压式薄壁钢导管（KBG管）的特点及施工安装技术

简介套接扣压式薄壁钢导管(KBG管)的特点与施工工序安装技术。     

套接扣压式镀锌钢导管在建筑施工中的应用

分析了KBG管的特点，并与其他金属管材作了比较，提出了KBG管作为电线(缆)保护管的优点，又从施工方法、验收规范方面加以阐述，提供了KBG管的具体使用方法。     

福建省建设厅关于批准发布省工程建设地方标准《套接扣压式薄壁钢导管电线管路施工及验收规程》的通知

近日。福建省建设厅以闽建科[2006]53号文发布关于批准《套接扣压式薄壁钢导管电线管路施工及验收规程》为福建省工程建设地方标准的通知。     

KBG扣压式穿线金属导管的应用技术

文章主要介绍了KBG扣压式金属导管在现浇混凝土中的应用,同时对该技术的施工要点及优点进行了总结。     

学习GB 51348-2019《民用建筑电气设计标准》

8.1.6在有可燃物的闷顶和封闭吊顶内明敷的配电线路,应采用金属导管或金属槽盒布线. [问题]:条文解释要求闷顶内的电气配管应采用热镀锌钢导管,是否JDG电线管、KBG电线管(一般不是热镀锌)不能使用? [回复]:CECS 120:2007《套接紧定式钢导管电线管路施工及验收规程》规定,JDG电线管、KBG电线管应镀锌.工程设计也要求镀锌.否则为不符合施工及验收规程的产品,不得在工程中使用.     

产品目录

证书编号99010715 生产单位L海市电器成套厂990107169901071799010718中国正泰集团公司北京华立惠建电气有限公司奇胜电器(惠州)工业有限公司99010719常熟市开关f-99010720上海西门子线路保护系统有限公司99010721天津梅兰日兰有限公司990107229901072399010724990107259901072699010738 产品名称KYNI一10户内交流金属恺装开关设备MNS低压抽出式开关柜电器附件、低压电器元件KBG扣压式薄壁钢管E2000系列开关插座PVC电线塑料管高低压开关设备和控制设备低压元器件SSX系列小型断路器(MCB)SIEMENS NH刀型触头熔断器C45系列模数化…     

套接紧定式钢导管的应用及质量控制

套接紧定式钢导管（以下简称JDG管）的使用,解决了厚壁钢导管及普通电线管在电线管路敷设中存在管路连接、接地跨接和管线防腐的复杂问题。JDG管在施工工程中与普通金属电线管相比,它可省去套丝、跨接地线、管线防腐工序,提高了工作效率,适用于室内干燥场所。     

一通专利

电线管路连接件专利号:ZL200320118944.6专利权人:吴伟国实用价值:本实用新型涉及一种电线管路连接件,尤其是一种套接紧固式电线管路连接件。更为牢固安全,使管路得到更好的保护,从而确保优良。一种套接紧定式管及连接管道专利号:200920263014.7专利权人:吴伟国实用价值:套接紧定式管、连接管道及线盒组成电气管道,采用同种材料制作,镀锌符合标准,紧定螺丝采用高     

浅谈玻璃钢夹砂管道

简要总结了玻璃钢夹砂管道的特点,并结合作者的实践,针对玻璃钢夹砂管道的施工提出了作者的一些观点。     

上海市高温水集中供热实施方案研究

分析上海市集中供热的规模和参数，提出上海市高温水集中供热的具体实施方案以及管网、热源、用户入口装置等一系列技术措施。     

大型制冷站冷却塔的选型与安装形式

论述了冷却水流量，冷却塔冷幅，主导风向对制冷量或制冷效率的影响，合理的管路配接方式，管径匹配以及降低管路系统阻力的途径。结合实例分析了常见的错误并指出了正确的选择方案。     

舒适·安全·经济──新世纪住宅的构想

随着住宅由福利分配型向商品型转化，社会对住宅设计提出了更高的要求。本文较全面分析论述了新世纪住宅设计应注意的问题。文章从以下几方面论述：1．居住生活的舒适性；2．居住空间的适应性；3．居住建设的经济性；4．居住行为的安全性；5、居住环境的整体性；6．居住技术的科学性；7．居住形态的地方性。     

Use of Soil Maps to Predict the Incidence of Corrosion and the Need for Iron Mains Renewal

The requirement for revised asset management plans from water-supply companies and the need to prioritize the renewal of buried water-supply pipework has stimulated an interest in the spatial distribution of corrosion risk and intensity. This paper reports how the relationships between soil corrosion and the spatial distribution of soil types, as displayed on soil maps, can be combined to predict the likely incidence of aggressive soils and thereby identify those water mains which are most likely to need early replacement. The concept is illustrated by a project supported by Portsmouth Water plc.     

集中供热网的可及性分析

针对集中供热网,尤其是多热源环形网提出了可及性分析的概念,建立了相应的数学模型并探讨了用混合遗传算法求解的方法。通过所编制的相应软件对国内几个大型集中供热网的分析研究结果表明,在环形网上合理地装配和调节阀门,有利于改善系统的工况,充分利用管网的输送能力,提高运行的经济性,给出了一个具体的算例。     

Biofilm Development on 304 and 316 Stainless Steels in a Potable Water System

Instances of rapid failure of copper-pipe plumbing in potable-water systems installed in large municipal buildings have led to a review of the use of alternative materials including stainless steel. This paper reports the findings of an in-situ study which investigated biofilm development on types 304 and 316 stainless-steel piping in a filtered and unfiltered, hot and cold-water supply system installed in a large public building in the west of Scotland. This building had experienced severe corrosion problems with copper pipework.     

Research requirements in support of the renovation of pressure and non-pressure pipes

In the UK a Trenchless Technology Network (NETTWORK; www.ttn.bham.ac.uk) has been established with the prime objective of gaining a broad consensus between academia and industry on research needs so that collaborative research proposals can be developed to expedite the required information. This paper summarises the initial phase of this work in respect of the renovation of deteriorated pipework by lining. The paper considers pressure and non-pressure pipes in turn, as the factors limiting performance in the two situations are significantly different. In each case current practice and knowledge are first summarised, whence research needs are identified based on the experience of experts from all sides of the pipeline renovation industry. For both classifications of pipe research requirements are identified in the generalised areas of: host pipe condition assessment, lining design, lining installation, and system maintenance.     

Reliability of corroded thin walled pipes repaired with composite overwrap

Current design codes provide two design methods: allowable stress/strain design and limit state design. Design in the current pipework composite repair codes is based on the allowable design method and only two safety factors are applied to the ultimate strain of the composite layer and to the yield stress of steel. On the other hand, safety factors are applied to each of the load and resistance parameters in the limit state design method. The limit state design method is probabilistic based in which the safety factors are calibrated based on a target reliability index. In this study, an investigation into the reliability of rehabilitated pipelines is conducted. The limit state function is defined based on ASME PCC-2, and reliability analysis is conducted using the AFOSM method. Results show that ASME PCC-2 generally provides adequate safety although the level of safety is not uniform for different percentages of corrosion. Comparing the achieved results and the ISO 2394 target reliability indices, some resistance factors are proposed.     

Domestic demand-side response on district heating networks

ABSTRACT

Results are presented from a field study that deployed demand-shifting technology on a sample of 28 homes connected to a district heating (DH) network in England over the winter of 2015/16. The study’s aim was to improve the load factor of the participating households. This has the potential to improve the attractiveness of DH and accelerate the roll out of DH networks. Capital costs are lowered by reducing required boiler capacity and pipework sizes. Operational costs are reduced by increasing the coverage of the primary plant and reducing heat losses and pumping energy. The interventions were found to increase the load factor of the participating homes from 0.29 to 0.44. This led to an increased energy demand of approximately 3%; however, the estimated network cost savings exceed this amount. While some participants noted the altered operation of their heating systems and expressed concern, the majority indicated they would be willing to participate in a commercial scheme for a small financial reward. In addition to specific insights for the deployment of demand shifting on DH networks, the results provide general lessons for the utilization of building thermal inertia for demand shifting.